CN105992378A - Method and device for enhancing PDCCH in carrier polymerization - Google Patents
Method and device for enhancing PDCCH in carrier polymerization Download PDFInfo
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- CN105992378A CN105992378A CN201510090269.8A CN201510090269A CN105992378A CN 105992378 A CN105992378 A CN 105992378A CN 201510090269 A CN201510090269 A CN 201510090269A CN 105992378 A CN105992378 A CN 105992378A
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Abstract
The present invention discloses a method and device for enhancing PDCCH in carrier polymerization. In an embodiment, in the step 1, UE receives a first DCI and a second DCI, the first DCI includes carrier instructions of K1 carriers, and the first information and the second information; and in the step 2, wireless signals are received on the K1 carriers according to the scheduling information in the second DCI, wherein K1 is a positive integer, the first information includes a position in a subframe, and the second information includes the number of scheduled TB on each carrier in accordance with the condition in the K1 carriers. The number of times of the maximum blind detection executed by the UE is reduced, and the problem is avoided that the size of the target DCI load is too big.
Description
Technical field
The present invention relates to the scheme of dispatch in wireless communication system, particularly relate to based on for a long time
Evolution (LTE-Long Term Evolution) for PDCCH (Physical Downlink
Control Channel, Physical Downlink Control Channel) method and apparatus.
Background technology
Traditional third generation partner program (3GPP 3rd Generation Partner
Project), in LTE system, PDCCH has a characteristic that
-. a DCI (Downl ink Control Information, Downlink Control Information) is only
Transmission or the reception of wireless signal on target serving district one by one can be dispatched
-. when base station be the transmission mode distributed of UE (User Equipment, subscriber equipment)
When multipotency supports 2 TB (Transport Block, transmission blocks), UE is by the DCI detected
Form (i.e. payload size) determines that the TB number scheduled in current DCI is 1 or 2
-. for DCI payload size (Payload Size) each of under current transmission mode,
UE needs to search at PDCCH and/or EPDCCH (Enhanced PDCCH, the PDCCH of enhancing)
Space performs blind Detecting (Bl ind Decoding) finally to determine that target DCI is in subframe
Time-frequency location, i.e. shared (one or more) CCE (Control Channel Element,
Control Channel Elements) or eCCE (enhanced CCE, the CCE of enhancing).
3GPP R (Release, version) 13 introduces a new research topic, i.e. strengthens
The CA more than 5 carrier waves (Carrier Aggregation, carrier aggregation)-in the present invention
Above-mentioned problem is referred to as eCA.In eCA, a UE at most may support 32 Serving cells,
In order to reduce the number of times of DCI blind detection survey and reduce DCI false-alarm or false dismissal, some companies propose one
Individual DCI dispatches the scheme of multiple Serving cells, and i.e. one DCI includes for multiple Serving cells
Schedule information.But, relevant programme does not considers the TB number that may carry on a Serving cell
The payload size of the scene-DCI changed may respective change, and then cause blind Detecting time
Number increases.Based on described relevant programme, one intuitively idea be, DCI scheduling each
On Serving cell, the TB number of carrying is fixing, and above-mentioned idea directly perceived can bring bigger scheduling
Limit.
Summary of the invention
Inventor is found by research, and the DCI multiple Serving cells of scheduling may face and ask as follows
Topic:
-. if the Serving cell scheduled in DCI there is more than one Serving cell currently can support
Most 2 TB transmission (i.e. the TB number of actual schedule may be 1 or 2), described DCI scheduling
The excursion of total TB number may be relatively big, according to existing LTE specification, described DCI scheduling
TB number is distinguished by DCI format (i.e. payload size).Too much DCI payload size can be led
Cause too much DCI blind detection and survey number of times, increase DCI false-alarm or false dismissal.
Inventor is by further study show that, the problems referred to above dispatch a service for 1 DCI
If the scene of community may also there will be the maximum that the Serving cell being scheduled can be supported
TB number is more than 2.And above-mentioned scene is likely at following Massive (large scale) MIMO (Multi
Input Multi Output, multiple-input and multiple-output) middle appearance.If according to traditional LTE side
Case, the corresponding multiple payload size of multiple possible TB numbers, then the number of times of blind Detecting can be greatly increased,
Bring the rising of complexity.
For the problems referred to above, the invention provides solution.It should be noted that do not conflicting
In the case of, the embodiment in the UE of the application and the feature in embodiment may apply in base station,
Vice versa.Further, in the case of not conflicting, in embodiments herein and embodiment
Feature can arbitrarily be mutually combined.
The invention discloses a kind of method in UE supporting many TB to process, wherein, including as follows
Step:
-step A. receive a DCI, a DCI include K1 carrier wave carrier wave instruction and
At least one of:
-. the first information: the positional information of the 2nd DCI, described positional information includes { carrying
The carrier index of carrier wave, transmission subframe subframe index, position in subframe } in one or many
Individual
-. the second information: adjusted on each qualified carrier wave in described K1 carrier wave
The TB number of degree
Step B. is wireless according to processing on schedule information K2 carrier wave in described K1 carrier wave
Signal.
Wherein, described K1 is positive integer, and a DCI includes in { first information, the second information }
At least first information and the 2nd DCI include described schedule information, or a DCI only includes {
One information, the second information } in the second information and a DCI include described schedule information.Described
Process is to receive and described K2 is equal to described K1, or described process is to send and described K2 is little
In or equal to the positive integer of described K1.Described qualified carrier wave is the TB number dynamic of carrying
The carrier wave of change.
In traditional scheme, the most descending distribution (Assignment) at most can only use a DCI,
And aspects of which provide a kind of possible, 2 the DCI scheduling once property descended distribution (i.e. first
DCI indicate at least the first information time), said method can ensure that the payload size of a DCI is not with
The TB number of two DCI scheduling and change, reduce described UE blind in order to detect performed by a DCI
Detection number of times.Additionally, described UE can determine that the position of the 2nd DCI according to the first information, reduce
Described UE is in order to detect the blind Detecting number of times performed by the 2nd DCI.Additionally, the present invention does not carry
For dispatching the scheme of the most descending distribution more than 2 DCI, connect if being because one of them DCI
Receive and described descending distribution unsuccessfully can be caused cannot to be performed by UE.2 DCI are reasonable foldings
In.
As an embodiment, transmission of subframe index instruction the 2nd DCI of described transmission subframe
Frame compares the number of sub frames of the transmission subframe delay of a DCI.As an embodiment, institute's rheme
Confidence breath is position in described subframe.As an embodiment, a 2nd DCI and DCI is in phase
With carrier wave (i.e. bearing carrier wave) and identical subframe on transmit.As an embodiment, institute
State positional information and include position in the carrier index of bearing carrier wave of the 2nd DCI and subframe, second
A DCI and DCI transmits in identical subframe, and described carrier index is integer.As one
Embodiment, belongs to the described carrier index that the up-downgoing carrier wave drama of same Serving cell is identical.
As an embodiment, in all Serving cells that described UE is configured, 2 different services
Carrier wave in community has identical described carrier index, and described 2 different Serving cells belong to
Different Serving cell groups.As an embodiment, described carrier index is that belonging to carrier wave, service is little
The cell index in district.
As an embodiment, the carrier wave instruction of described K1 carrier wave is K1 described carrier index.
As an embodiment, the carrier wave instruction of described K1 carrier wave is Q bit, wherein K1 ratio
Spy is state 1 (or 0) and other bits are contrary state, and described Q is positive integer.Make
It is a sub-embodiment, Q the Serving cell that described Q bit correspondence current UE is configured.
As an embodiment, the carrier wave instruction of described K1 carrier wave is the index of Q1 Serving cell group,
Described Q1 is less than or equal to described K1, and each described Serving cell group includes that at least one service is little
District.Described process be receive and described K1 carrier wave be that described Q1 Serving cell group can be used for
The carrier wave of downlink transfer, or described process be send and described K1 carrier wave be described Q1 clothes
Business community group can be used for the carrier wave of uplink.
As an embodiment, described qualified carrier wave is configured by high-level signaling.As one
Individual embodiment, described qualified carrier wave refers to that the transmission mode currently configured by base station is supported
Maximum TB number more than 1 carrier wave.
As an embodiment, described K2 is less than described K1, described UE at described K1 carrier wave
In described K2 carrier wave outside K1-K2 carrier wave on perform LBT (Listen Before Talk,
Intercept before transmission) operation, determine and keep zero transmit power on described K1-K2 carrier wave.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A1. receives the 2nd DCI and determines described schedule information.
Wherein, for { first information, the second information }, a DCI includes therein at least the first
Information.
As an embodiment, it is characterized in that of above-mentioned aspect, described step A also includes as follows
Step:
-step A0. determines the payload size of the 2nd DCI according to the second information.
Wherein, a DCI also includes the second information.
The benefit of above-mentioned aspect is, the payload size of the 2nd DCI can be along with scheduled in the 2nd DCI
TB number change flexibly, avoid described UE (for all possible payload size) simultaneously and hold
The substantial amounts of blind Detecting of row.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A2. is for the payload size of a given DCI, indicated by the second information
Total TB number determine the bit number that described schedule information takies.
Wherein, for { first information, the second information }, a DCI only includes the second letter therein
Breath.
The advantage of above-mentioned aspect is, the payload size of a DCI is not with the second information change, it is to avoid
Described UE (for all possible payload size) performs substantial amounts of blind Detecting.Additionally, it is above-mentioned
The payload size that aspect avoids a DCI is excessive, saves interface-free resources.
As an embodiment, payload size and second information of a DCI are unrelated.As one
Embodiment, described schedule information includes resource allocation information and the specific information of TB, described resource
Bit number shared by distribution information reduces along with the increase of the total TB number indicated by the second information,
The specific information of described TB includes { MCS (Modulation and Coding Scheme, modulation
Demodulation scheme), RV (Redundancy Version, redundant version number), NDI (New Data
Indicator, new data indicate) in one or more..The essence of this embodiment is:
The granularity of resource distribution becomes coarse along with the increase of the total TB number indicated by the second information.
Its objective is that the payload size maintaining a total DCI is constant.
Concrete, according to an aspect of the present invention, it is characterised in that described positional information includes
Bearing carrier wave, and transmit subframe, position in subframe } in one or more.As described subframe
One embodiment of interior position, in described subframe, position is one below:
-. PDCCH or EPDCCH that the second DCI takies is M1 PDCCH candidate
(Candidates) index and in the candidate collection of M2 EPDCCH candidate composition, described M1
With described M2 and be M, described M1 and described M2 is greater than the positive integer of 1 respectively.As one
Individual sub-embodiment, described M1 PDCCH candidate be positioned at CSS (Common Search Space,
Public search space)
-. the PDCCH that the second DCI takies is in the candidate collection that M PDCCH candidate forms
Index
-. the candidate collection that the EPDCCH that the second DCI takies forms M EPDCCH candidate
In index.
Wherein, described M is greater than the positive integer of 1.
As an embodiment, described M PDCCH candidate is a USS (UE-specific
The specific search volume of Search Space, UE) in all or part of PDCCH candidate.
As an embodiment, described M PDCCH candidate is in a CSS and corresponding USS
All PDCCH candidates.
As an embodiment, described M EPDCCH candidate be all in a USS or
Part EPDCCH candidate.
As an embodiment, described M1 PDCCH candidate is all PDCCH in a CSS
Candidate, described M2 EPDCCH candidate is all EPDCCH candidates in corresponding USS.
As an embodiment, described M is { in 16,22,24,30,32,38,48,54}
One.
Above-mentioned PDCCH candidate and EPDCCH candidate be respectively the CCE that may take of the 2nd DCI and
ECCE, explain in detail with reference to TS36.213 9.1.1 joint in PDCCH candidates and
9.1.4 the ePDCCH candidates saved.
Concrete, according to an aspect of the present invention, it is characterised in that described schedule information includes
In { the specific schedule information of TB forms for public schedule information, carrier wave specific schedule information } one
Plant or multiple.Wherein, described public schedule information is applicable to all described K1 carrier waves,
Or the carrier wave that described public schedule information is suitable for is configured by high-level signaling.
Above-mentioned public schedule information can effectively reduce the payload size of DCI, improves interface-free resources
Utilization ratio.
As an embodiment, described schedule information includes { the first territory, TPC (Transmitting
Power Control, transmission power control), HARQ (Hybrid Automatic Repeat
ReQuest, hybrid automatic repeat-request) process number, DAI (Downlink Assignment Index,
Descending distribution index), (Demodulation Reference Signal, demodulation is with reference to letter for DMRS
Number) information, SRS (Sounding Reference Signal, interception reference signal) asks }
In one or more.Wherein, the first territory is distributed for frequency domain resource.
As an embodiment, described process is to send, and described DMRS information includes that DMRS circulates
Displacement and DMRS OCC (Orthogonal Covering Code, orthogonal covering codes).As one
Individual embodiment, described process is to receive, and described DMRS information includes antenna port, scrambler identification
Number, the number of plies.
The invention discloses a kind of method in base station supporting many TB to operate, wherein, including as follows
Step:
-step A. send a DCI, a DCI include K1 carrier wave carrier wave instruction and
At least one of:
-. the first information: the positional information of the 2nd DCI, described positional information includes { carrying
The carrier index of carrier wave, transmission subframe subframe index, position in subframe } in one or many
Individual
-. the second information: adjusted on each qualified carrier wave in described K1 carrier wave
The TB number of degree
Step B. is wireless according to operating on schedule information K2 carrier wave in described K1 carrier wave
Signal.
Wherein, described K1 is positive integer, and a DCI includes in { first information, the second information }
At least first information and the 2nd DCI include described schedule information, or a DCI only includes {
One information, the second information } in the second information and a DCI include described schedule information.Described
Operation is to send and described K2 is equal to described K1, or described operation is to receive and described K2 is little
In or equal to the positive integer of described K1.Described qualified carrier wave is the TB number dynamic of carrying
The carrier wave of change.
As an embodiment of described step B, described K2 is less than described K1, and described base station exists
The wireless signal of described schedule information schedules is detected on described K1 carrier wave, but only at described K2
Detect and receive the wireless signal of described schedule information schedules on individual carrier wave.
As an embodiment, described wireless signal is at PUSCH (Physical Uplink Shared
Channel, Physical Uplink Shared Channel) or PDSCH (Physical Downlink Shared
Channel, Physical Downlink Shared Channel) upper transmission.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A1. sends the 2nd DCI and indicates described schedule information.
Wherein, for { first information, the second information }, a DCI includes therein at least the first
Information.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A2. is for the payload size of a given DCI, indicated by the second information
Total TB number determine the bit number that described schedule information takies.
Wherein, for { first information, the second information }, a DCI only includes the second letter therein
Breath.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A0. determines the payload size of the 2nd DCI according to the second information.
Wherein, a DCI also includes the second information.
Concrete, according to an aspect of the present invention, it is characterised in that described positional information includes
Bearing carrier wave, and transmit subframe, position in subframe } in one or more.As described subframe
One embodiment of interior position, in described subframe, position is one below:
-. PDCCH or EPDCCH that the second DCI takies M1 PDCCH candidate and
Index in the candidate collection of M2 EPDCCH candidate composition, described M1's and described M2 and be
M, described M1 and described M2 are greater than the positive integer of 1 respectively.As a sub-embodiment, institute
State M1 PDCCH candidate and be positioned at CSS
-. the PDCCH that the second DCI takies is in the candidate collection that M PDCCH candidate forms
Index
-. the candidate collection that the EPDCCH that the second DCI takies forms M EPDCCH candidate
In index.
Wherein, described M is greater than the positive integer of 1.
Concrete, according to an aspect of the present invention, it is characterised in that described schedule information includes
In { the specific schedule information of TB forms for public schedule information, carrier wave specific schedule information } one
Plant or multiple.Wherein, described public schedule information is applicable to all described K1 carrier waves,
Or the carrier wave that described public schedule information is suitable for is configured by high-level signaling.
Described carrier wave is specific refers to each carrier wave separate configurations relevant information, and described TB is specific is
Each TB separate configurations relevant information.
The invention discloses a kind of subscriber equipment supporting many TB to process, wherein, including such as lower module:
First module: include the carrier wave instruction of K1 carrier wave for receiving a DCI, a DCI
And at least one of:
-. the first information: the positional information of the 2nd DCI, described positional information includes { carrying
The carrier index of carrier wave, transmission subframe subframe index, position in subframe } in one or many
Individual
-. the second information: adjusted on each qualified carrier wave in described K1 carrier wave
The TB number of degree
Second module: for according to place on schedule information K2 carrier wave in described K1 carrier wave
Reason wireless signal.
Wherein, described K1 is positive integer, and a DCI includes in { first information, the second information }
At least first information and the 2nd DCI include described schedule information, or a DCI only includes {
One information, the second information } in the second information and a DCI include described schedule information.Described
Process is to receive and described K2 is equal to described K1, or described process is to send and described K2 is little
In or equal to the positive integer of described K1.Described qualified carrier wave is the TB number dynamic of carrying
The carrier wave of change.
As an embodiment, above-mentioned subscriber equipment is characterised by, the first module is additionally operable to: root
Determine the payload size of the 2nd DCI according to the second information, receive the 2nd DCI and determine described schedule information.
Wherein, a DCI includes the first information and the second information.
As an embodiment, above-mentioned subscriber equipment is characterised by, the second module is additionally operable to: right
In the payload size of a given DCI, determine institute according to the total TB number indicated by the second information
State the bit number that schedule information takies.Wherein, for { first information, the second information }, a DCI
Only include the second information therein.
As an embodiment, above-mentioned subscriber equipment is characterised by, in described subframe position be with
One of lower:
-. PDCCH or EPDCCH that the second DCI takies M1 PDCCH candidate and
Index in the candidate collection of M2 EPDCCH candidate composition, described M1's and described M2 and be
M, described M1 and described M2 are greater than the positive integer of 1 respectively.As a sub-embodiment, institute
State M1 PDCCH candidate and be positioned at CSS
-. the PDCCH that the second DCI takies is in the candidate collection that M PDCCH candidate forms
Index
-. the candidate collection that the EPDCCH that the second DCI takies forms M EPDCCH candidate
In index.
Wherein, described M is greater than the positive integer of 1.
The invention discloses a kind of base station equipment supporting many TB to operate, wherein, including such as lower module:
First module: include the carrier wave instruction of K1 carrier wave for sending a DCI, a DCI
And at least one of:
-. the first information: the positional information of the 2nd DCI, described positional information includes { carrying
The carrier index of carrier wave, transmission subframe subframe index, position in subframe } in one or many
Individual
-. the second information: adjusted on each qualified carrier wave in described K1 carrier wave
The TB number of degree
Second module: for according to behaviour on schedule information K2 carrier wave in described K1 carrier wave
Make wireless signal.
Wherein, described K1 is positive integer, and a DCI includes in { first information, the second information }
At least first information and the 2nd DCI include described schedule information, or a DCI only includes {
One information, the second information } in the second information and a DCI include described schedule information.Described
Operation is to send and described K2 is equal to described K1, or described operation is to receive and described K2 is little
In or equal to the positive integer of described K1.Described qualified carrier wave is the TB number dynamic of carrying
The carrier wave of change.
As an embodiment, above-mentioned base station equipment is characterised by, the first module is additionally operable to: root
Determine the payload size of the 2nd DCI according to the second information, send the 2nd DCI and indicate described schedule information.
Wherein, a DCI includes the first information and the second information.
As an embodiment, above-mentioned base station equipment is characterised by, the second module is additionally operable to: right
In the payload size of a given DCI, determine institute according to the total TB number indicated by the second information
State the bit number that schedule information takies.Wherein, for { first information, the second information }, a DCI
Only include the second information therein.
As an embodiment, above-mentioned base station equipment is characterised by, in described subframe position be with
One of lower:
-. PDCCH or EPDCCH that the second DCI takies M1 PDCCH candidate and
Index in the candidate collection of M2 EPDCCH candidate composition, described M1's and described M2 and be
M, described M1 and described M2 are greater than the positive integer of 1 respectively.As a sub-embodiment, institute
State M1 PDCCH candidate and be positioned at CSS
-. the PDCCH that the second DCI takies is in the candidate collection that M PDCCH candidate forms
Index
-. the candidate collection that the EPDCCH that the second DCI takies forms M EPDCCH candidate
In index.
Wherein, described M is greater than the positive integer of 1.
Comparing existing public technology, the present invention has a following technical advantage:
-. target DCI causes possible load chi because the excursion of total TB number of scheduling is relatively big
When very little excursion is bigger, reduce the maximum blind Detecting number of times that UE performs
-. the payload size avoiding target DCI is excessive, saves interface-free resources.
Accompanying drawing explanation
The detailed description that non-limiting example is made made with reference to the following drawings by reading, this
The other features, objects and advantages of invention will become more apparent:
Fig. 1 shows the flow chart that downstream wireless signals according to an embodiment of the invention is transmitted；
Fig. 2 shows showing of PDCCH according to an embodiment of the invention candidate/EPDCCH candidate
It is intended to；
Fig. 3 shows the schematic diagram of a DCI according to an embodiment of the invention；
Fig. 4 shows a DCI according to an embodiment of the invention and the schematic diagram of the 2nd DCI；
Fig. 5 shows the structured flowchart of the processing means in UE according to an embodiment of the invention；
Fig. 6 shows the structural frames of the processing means in base station according to an embodiment of the invention
Figure；
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described in further detail, needs explanation
It is that, in the case of not conflicting, the feature in embodiments herein and embodiment can be the most mutual
Combination.
Embodiment 1
Embodiment 1 illustrates the flow chart of downstream wireless signals transmission, as shown in Figure 1.Accompanying drawing 1
In, base station N1 is the maintenance base station of the Serving cell of UE U2, and wherein the step in square frame F1 is can
Select step.
ForBase station N1, send a DCI in step s 11, in step s 13 according to scheduling letter
Breath sends wireless signal in K1 carrier wave.ForUE U2, receive first in the step s 21
DCI, receives wireless signal according to described schedule information in step S23 on described K1 carrier wave.
In embodiment 1, a DCI include described K1 carrier wave carrier wave instruction and with down to
One of few:
-. the first information: the positional information of the 2nd DCI, described positional information includes { carrying
The carrier index of carrier wave, transmission subframe subframe index, position in subframe } in one or many
Individual
-. the second information: adjusted on each qualified carrier wave in described K1 carrier wave
The TB number of degree.
Described K1 is positive integer, and a DCI includes in { first information, the second information } at least
The first information and the 2nd DCI include described schedule information, or a DCI only includes { the first letter
Breath, the second information in the second information and a DCI include described schedule information.Described meet
The carrier wave of condition is the carrier wave of the TB number dynamic change of carrying.
As the sub-embodiment 1 of embodiment 1, base station N1 sends the 2nd DCI in step s 12 and refers to
Showing described schedule information, UE U2 receives the 2nd DCI in step S22 and determines described schedule information.
Wherein, at least first information during a DCI includes { first information, the second information }.
As the sub-embodiment 2 of embodiment 1, described K1 carrier wave is divided into two parts, first
Downlink transfer on Fen is configured to TM (Transmission Mode, transmission mode) 1, and second
Downlink transfer in part is configured to TM9.Described qualified carrier wave is Part II, i.e.
The TB of carrying is probably 1 or 2.
Embodiment 2
Embodiment 2 illustrates the schematic diagram of PDCCH candidate/EPDCCH candidate in the present invention, such as accompanying drawing
Shown in 2.In accompanying drawing 2,1 corresponding 1 PDCCH candidate of position candidate or 1 EPDCCH wait
Choosing.
In embodiment 2, in heretofore described subframe, a target in position respective figure 2 is waited
Bit selecting is put, and in the most described subframe, position is that described target candidate position is at { this M of position candidate 1-M}
Index in the set of individual position candidate composition.
Described M position candidate corresponding UE respectively is at the bearing carrier wave of the 2nd DCI and the 2nd DCI
Transmission subframe on the M of all monitorings (Monitor) when performing blind Detecting for the 2nd DCI
PDCCH candidate and/or EPDCCH candidate.
As the sub-embodiment 1 of embodiment 2, UE is at the bearing carrier wave of the 2nd DCI and the 2nd DCI
Transmission subframe on be not configured EPDCCH.2nd DCI can be at CSS and USS (UE-specific
The specific search volume of Search Space, UE) upper transmission, wherein { position candidate 1-2} is corresponding
AL (Aggregation Level, the degree of polymerization) is 2 PDCCH candidates in the CSS of 4, { waits
Bit selecting puts 2 PDCCH candidates in the CSS that 3-6} corresponding A L is 8, { position candidate 7-12}
Corresponding A L is 6 PDCCH candidates in the USS of 2, and { position candidate 13-14} corresponding A L is
2 PDCCH candidates in the USS of 4, and position candidate 15-16} corresponding A L be 8 USS in
2 PDCCH candidates.Described M is 16.In the sub-embodiment 1 of embodiment 2, the 2nd DCI
Do not support that AL is 1 (payload size in view of the 2nd DCI is bigger).
As the sub-embodiment 2 of embodiment 2, UE is at the bearing carrier wave of the 2nd DCI and the 2nd DCI
Transmission subframe on be configured EPDCCH.2nd DCI can transmit on CSS and USS, wherein { waits
Bit selecting puts 2 in the CSS that 1-2} corresponding A L (Aggregation Level, the degree of polymerization) is 4
Individual PDCCH candidate, position candidate 3-6} corresponding A L is 2 PDCCH candidates in the CSS of 8,
{ M-6 EPDCCH candidate in position candidate 7-M} correspondence USS, described M is 38 or 54.
As the sub-embodiment 3 of embodiment 2, UE is at the bearing carrier wave of the 2nd DCI and the 2nd DCI
Transmission subframe on be configured EPDCCH.2nd DCI can only transmit on USS, wherein { candidate
M EPDCCH candidate in 1-M} correspondence USS of position, described M is 32 or 48.
As the sub-embodiment 4 of embodiment 2, UE is at the bearing carrier wave of the 2nd DCI and the 2nd DCI
Transmission subframe on be not configured EPDCCH.2nd DCI can only transmit on USS, wherein { waits
Bit selecting puts M PDCCH candidate in 1-M} correspondence USS, and described M is 16 or 24.Implement
In the sub-embodiment 4 of example 2, the 2nd DCI supports that AL is 1
Embodiment 3
Embodiment 3 illustrates the schematic diagram of the DCI in the present invention, as shown in Figure 3.Accompanying drawing
In 3, a DCI is indicated by the carrier wave of K1 carrier wave, the second information, public schedule information, carries
The specific schedule information of ripple and TB specific schedule information composition.Second information includes K3 bit,
With qualified K3 the carrier wave one_to_one corresponding in described K1 carrier wave, wherein 1 bit is used for
Indicating the TB number dispatched by a DCI on 1 carrier wave is 1 or 2, and described K3 is no more than K1
Positive integer.
In embodiment 3, a DCI does not comprise the first information.Total TB number scheduled in oneth DCI is (i.e.
Total TB number indicated by second information) it is L, described L is not less than K1 and no more than K1+K3.Institute
State the specific schedule information of carrier wave and include the sub-information of K1 group first, and described K1 carrier wave one_to_one corresponding.
The specific schedule information of described TB includes the sub-information of L group second, and the L scheduled in a DCI
TB one_to_one corresponding.
As the sub-embodiment 1 of embodiment 3, the first sub-information includes { the first territory, HARQ entity
(Entity) index, HARQ process number } at least one, the second sub-information include MCS, RV,
At least one in NDI}.Wherein, the first territory is distributed for frequency domain resource.For given first
The payload size of DCI, the bit number in the first territory determines according to described L.Described HARQ entity indexes
The HARQ entity corresponding to TB being scheduled in instruction corresponding carriers, the first sub-information includes described
HARQ entity index makes the data belonging to a HARQ process can be scheduled for multiple dynamically
On carrier wave.As a sub-embodiment of described sub-embodiment 1, the bit number in the first territory is little
In the maximum integer of (R-r*L)/K1, r is the bit number of the second sub-information, and R is fixed integer.
As the sub-embodiment 2 of embodiment 3, described public schedule information includes that { DMRS circulates
At least one displacement and DMRS OCC, the second territory } in, described public schedule information is by described
K1 carrier wave is shared.Shared by the HARQ_ACK of the TB that the second territory is dispatched for a DCI for instruction
PHICH group number or PHICH group in orthogonal sequence index.Described DMRS cyclic shift and DMRS
OCC refers to: the corresponding one group of DMRS cyclic shift of the wireless signal that is scheduled on described K1 carrier wave and
The configuration information of DMRS OCC.
As the sub-embodiment 3 of embodiment 3, described public schedule information include CSI request,
At least one SRS request } in, the carrier wave that described public schedule information is suitable for is to be believed by high level
Order configuration.
As the sub-embodiment 4 of embodiment 3, described public schedule information includes the 3rd territory.Its
In, a DCI transmits for dispatching downlink signal.3rd territory is at least one of:
-. auxiliary UE determines HARQ-ACK number of bits of feedback in the target-subframe of target carrier,
Described HARQ-ACK feedback bits is for the carrier wave in carrier set
-. auxiliary UE determines the transmission subframe by the end of a DCI, and whether UE is in carrier set
At least one descending (Downlink) of missing inspection distribution (Assignment).
Wherein, described carrier set includes the most described K1 carrier wave, and described carrier set includes
Carrier wave configured by high-level signaling.
Accompanying drawing 3 only describes information content, does not represent order before and after bit arrangement.
Embodiment 4
Embodiment 4 illustrates the DCI in the present invention and the schematic diagram of the 2nd DCI, such as accompanying drawing 4
Shown in.In accompanying drawing 4, a DCI is indicated by the carrier wave of K1 carrier wave, the first information, the second letter
Breath composition.2nd DCI is by public schedule information, and the specific schedule information of carrier wave and TB specifically adjust
Degree information forms.Total TB number (the total TB number indicated by the i.e. second information) scheduled in oneth DCI
For L.The specific schedule information of described carrier wave includes the sub-information of K1 group first, and described K1 carrier wave
One_to_one corresponding.The specific schedule information of described TB includes the sub-information of L group second, and a DCI is adjusted
L TB one_to_one corresponding of degree.
UE determines the position of the 2nd DCI according to the first information, determines the 2nd DCI's according to the second information
Payload size, the information bit of the i.e. the 2nd DCI (removing CRC) is: P+P1*K1
+P2*L.Wherein P, P1, P2 are described public schedule information respectively, the first sub-information and second
The bit number of sub-information.
As the sub-embodiment 1 of embodiment 4, the first information includes the subframe internal information of the 2nd DCI,
UE is 1 (i.e. directly receiving the 2nd DCI) for the blind Detecting number of times that the 2nd DCI performs.
Embodiment 5
Embodiment 5 illustrates the structured flowchart of the processing means in a UE, as shown in Figure 5.Attached
In Fig. 5, UE processing means 300 is mainly made up of receiver module 201 and communication module 202.
For receiving a DCI, a DCI, receiver module 201 includes that the carrier wave of K1 carrier wave refers to
Show and at least one of:
-. the first information: the positional information of the 2nd DCI, described positional information includes { carrying
The carrier index of carrier wave, transmission subframe subframe index, position in subframe } in one or many
Individual
-. the second information: adjusted on each qualified carrier wave in described K1 carrier wave
The TB number of degree.
Communication module 202 is for according to schedule information K2 carrier wave in described K1 carrier wave
Process wireless signal.
In embodiment 5, described K1 is positive integer, and a DCI includes { first information, the second letter
Breath } at least first information and the 2nd DCI include described schedule information, or a DCI is only
Described schedule information is included including the second information in { first information, the second information } and a DCI.
Described process is to receive (the arrow that the two-way dotted arrow correspondence of communication module 202 is pointed to from left to right
Head) and described K2 equal to described K1, or described process is to send (communication module 202 double
To the dotted arrow arrow that points to from right to left of correspondence) and described K2 be less than or equal to described K1
Positive integer.Described qualified carrier wave is the carrier wave of the TB number dynamic change of carrying.The
Two DCI can only transmit in USS, and in described subframe, position is one below:
-. the PDCCH that the second DCI takies is in the candidate collection that M PDCCH candidate forms
Index, described M PDCCH candidate is positioned at the same subframe of same carrier wave
-. the candidate collection that the EPDCCH that the second DCI takies forms M EPDCCH candidate
In index, described M EPDCCH candidate is positioned at the same subframe of same carrier wave.
Wherein, described M is greater than the positive integer of 1.
As the sub-embodiment 1 of embodiment 5, described K1 is 1, and described K2 is 1.
Embodiment 6
Embodiment 6 illustrates the structured flowchart of the processing means in a base station, as shown in Figure 6.
In accompanying drawing 6, base station processing means 300 is mainly made up of sending module 301 and communication module 302.
For sending a DCI, a DCI, sending module 301 includes that the carrier wave of K1 carrier wave refers to
Show and at least one of:
-. the first information: the positional information of the 2nd DCI, in described positional information includes subframe
Position, a 2nd DCI and DCI transmits on same carrier wave and same subframe
-. the second information: adjusted on each qualified carrier wave in described K1 carrier wave
The TB number of degree
Communication module 302 is for according to schedule information K2 carrier wave in described K1 carrier wave
Operation wireless signal.
In embodiment 6, described K1 is greater than the positive integer of 1, a DCI include the first information,
Second information } at least first information and the 2nd DCI include described schedule information, or first
DCI only includes the second information in { first information, the second information } and a DCI includes described tune
Degree information.Described operation is that (the two-way dotted arrow correspondence of communication module 202 is from right to left in transmission
The arrow pointed to) and described K2 equal to described K1, or described operation is to receive (communication module
The two-way dotted arrow arrow that points to from left to right of correspondence of 202) and described K2 be less than or equal to
The positive integer of described K1.Described qualified carrier wave is the load of the TB number dynamic change of carrying
Ripple.
As the sub-embodiment 1 of embodiment 6, described schedule information include public schedule information,
The specific schedule information of carrier wave, the specific schedule information of TB forms }.Wherein, described public tune
Degree information is applicable to all described K1 carrier waves, or described public schedule information is suitable for
Carrier wave is configured by high-level signaling.
As the sub-embodiment 2 of embodiment 6, in described K1 carrier wave, at least a carrier wave is positioned at
Mandate frequency spectrum and at least a carrier wave are positioned at unlicensed spectrum.
One of ordinary skill in the art will appreciate that all or part of step in said method is permissible
Instructing related hardware by program to complete, described program can be stored in computer-readable storage medium
In matter, such as read only memory, hard disk or CD etc..Optionally, above-described embodiment whole or
Part steps can also use one or more integrated circuit to realize.Accordingly, above-mentioned enforcement
Each modular unit in example, can use example, in hardware to realize, it is also possible to by software function module
Form realizes, and the application is not limited to the combination of the software and hardware of any particular form.In the present invention
UE include but not limited to the Wireless Telecom Equipments such as mobile phone, panel computer, notebook, card of surfing Internet.
Base station in the present invention includes but not limited to macrocell base stations, microcell base station, Home eNodeB, in
Continue the Wireless Telecom Equipments such as base station.
The above, only presently preferred embodiments of the present invention, it is not intended to limit the present invention's
Protection domain.All within the spirit and principles in the present invention, any amendment made, equivalent,
Improve, should be included within the scope of the present invention.
Claims (13)
1. support the method in the UE of many TB process, wherein, comprise the steps:
-step A. receive a DCI, a DCI include K1 carrier wave carrier wave instruction and
At least one of:
-. the first information: the positional information of the 2nd DCI, described positional information includes { carrying
The carrier index of carrier wave, transmission subframe subframe index, position in subframe } in one or many
Individual
-. the second information: adjusted on each qualified carrier wave in described K1 carrier wave
The TB number of degree
Step B. is wireless according to processing on schedule information K2 carrier wave in described K1 carrier wave
Signal.
Wherein, described K1 is positive integer, and a DCI includes in { first information, the second information }
At least first information and the 2nd DCI include described schedule information, or a DCI only includes {
One information, the second information } in the second information and a DCI include described schedule information.Described
Process is to receive and described K2 is equal to described K1, or described process is to send and described K2 is little
In or equal to the positive integer of described K1.Described qualified carrier wave is the TB number dynamic of carrying
The carrier wave of change.
Method the most according to claim 1, it is characterised in that described step A also includes
Following steps:
-step A1. receives the 2nd DCI and determines described schedule information.
Wherein, for { first information, the second information }, a DCI includes therein at least the first
Information.
Method the most according to claim 1, it is characterised in that described step A also includes
Following steps:
-step A2. is for the payload size of a given DCI, indicated by the second information
Total TB number determine the bit number that described schedule information takies.
Wherein, for { first information, the second information }, a DCI only includes the second letter therein
Breath.
Method the most according to claim 2, it is characterised in that described step A also includes
Following steps:
-step A0. determines the payload size of the 2nd DCI according to the second information.
Wherein, a DCI also includes the second information.
5. according to the method described in claim 1-4, it is characterised in that position in described subframe
It is one below:
-. PDCCH or EPDCCH that the second DCI takies M1 PDCCH candidate and
Index in the candidate collection of M2 EPDCCH candidate composition, described M1's and described M2 and be
M, described M1 and described M2 are greater than the positive integer of 1 respectively
-. the PDCCH that the second DCI takies is in the candidate collection that M PDCCH candidate forms
Index
-. the candidate collection that the EPDCCH that the second DCI takies forms M EPDCCH candidate
In index.
Wherein, described M is greater than the positive integer of 1.
6. according to the method described in claim 1-5, it is characterised in that described schedule information bag
Include { the specific schedule information of TB forms for public schedule information, carrier wave specific schedule information }
In one or more.Wherein, described public schedule information is applicable to all described K1
Carrier wave, or the carrier wave that described public schedule information is suitable for configures by high-level signaling.
7. support the method in the base station of many TB operation, wherein, comprise the steps:
-step A. send a DCI, a DCI include K1 carrier wave carrier wave instruction and
At least one of:
-. the first information: the positional information of the 2nd DCI, described positional information includes { carrying
The carrier index of carrier wave, transmission subframe subframe index, position in subframe } in one or many
Individual
-. the second information: adjusted on each qualified carrier wave in described K1 carrier wave
The TB number of degree
Step B. is wireless according to operating on schedule information K2 carrier wave in described K1 carrier wave
Signal.
Wherein, described K1 is positive integer, and a DCI includes in { first information, the second information }
At least first information and the 2nd DCI include described schedule information, or a DCI only includes {
One information, the second information } in the second information and a DCI include described schedule information.Described
Operation is to send and described K2 is equal to described K1, or described operation is to receive and described K2 is little
In or equal to the positive integer of described K1.Described qualified carrier wave is the TB number dynamic of carrying
The carrier wave of change.
Method the most according to claim 7, it is characterised in that described step A also includes
Following steps:
-step A1. sends the 2nd DCI and indicates described schedule information.
Wherein, for { first information, the second information }, a DCI includes therein at least the first
Information.
Method the most according to claim 7, it is characterised in that described step A also includes
Following steps:
-step A2. is for the payload size of a given DCI, indicated by the second information
Total TB number determine the bit number that described schedule information takies.
Wherein, for { first information, the second information }, a DCI only includes the second letter therein
Breath.
Method the most according to claim 8, it is characterised in that described step A also includes
Following steps:
-step A0. determines the payload size of the 2nd DCI according to the second information.
Wherein, a DCI also includes the second information.
11. according to the method described in claim 7-10, it is characterised in that position in described subframe
Putting is one below:
-. PDCCH or EPDCCH that the second DCI takies M1 PDCCH candidate and
Index in the candidate collection of M2 EPDCCH candidate composition, described M1's and described M2 and be
M, described M1 and described M2 are greater than the positive integer of 1 respectively
-. the PDCCH that the second DCI takies is in the candidate collection that M PDCCH candidate forms
Index
-. the candidate collection that the EPDCCH that the second DCI takies forms M EPDCCH candidate
In index.
Wherein, described M is greater than the positive integer of 1.
12. 1 kinds of subscriber equipmenies supporting that many TB process, wherein, including such as lower module:
First module: include the carrier wave instruction of K1 carrier wave for receiving a DCI, a DCI
And at least one of:
-. the first information: the positional information of the 2nd DCI, described positional information includes { carrying
The carrier index of carrier wave, transmission subframe subframe index, position in subframe } in one or many
Individual
-. the second information: adjusted on each qualified carrier wave in described K1 carrier wave
The TB number of degree
Second module: for according to place on schedule information K2 carrier wave in described K1 carrier wave
Reason wireless signal.
Wherein, described K1 is positive integer, and a DCI includes in { first information, the second information }
At least first information and the 2nd DCI include described schedule information, or a DCI only includes {
One information, the second information } in the second information and a DCI include described schedule information.Described
Process is to receive and described K2 is equal to described K1, or described process is to send and described K2 is little
In or equal to the positive integer of described K1.Described qualified carrier wave is the TB number dynamic of carrying
The carrier wave of change.
13. 1 kinds of base station equipments supporting many TB operation, wherein, including such as lower module:
First module: include the carrier wave instruction of K1 carrier wave for sending a DCI, a DCI
And at least one of:
-. the first information: the positional information of the 2nd DCI, described positional information includes { carrying
The carrier index of carrier wave, transmission subframe subframe index, position in subframe } in one or many
Individual
-. the second information: adjusted on each qualified carrier wave in described K1 carrier wave
The TB number of degree
Second module: for according to behaviour on schedule information K2 carrier wave in described K1 carrier wave
Make wireless signal.
Wherein, described K1 is positive integer, and a DCI includes in { first information, the second information }
At least first information and the 2nd DCI include described schedule information, or a DCI only includes {
One information, the second information } in the second information and a DCI include described schedule information.Described
Operation is to send and described K2 is equal to described K1, or described operation is to receive and described K2 is little
In or equal to the positive integer of described K1.Described qualified carrier wave is the TB number dynamic of carrying
The carrier wave of change.
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| EP4098055A4 (en) * | 2020-01-31 | 2023-11-01 | Qualcomm Incorporated | Pdcch monitoring for single-dci to multi-cell scheduling |
| WO2022077295A1 (en) * | 2020-10-14 | 2022-04-21 | 北京小米移动软件有限公司 | Method and apparatus for jointly scheduling multiple transport blocks, communication device, and storage medium |
| CN112514316A (en) * | 2020-10-14 | 2021-03-16 | 北京小米移动软件有限公司 | Method, device, communication equipment and storage medium for jointly scheduling multiple transmission blocks |
| CN112514316B (en) * | 2020-10-14 | 2023-08-15 | 北京小米移动软件有限公司 | Method, device, communication equipment and storage medium for jointly scheduling multiple transmission blocks |
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| CN105992378B (en) | 2019-11-29 |
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